Melanie Griffith has checked herself into rehab again as part of an ongoing plan of sobriety, RadarOnline.com has confirmed.

“She is there to reinforce her commitment to stay healthy. This is part of a routine plan that was designed between her and her doctors years ago,” her publicist Robin Baum confirmed.

Griffith’s struggle with drugs and alcohol date back to the late 70’s and early 80’s and put her career in serious peril. She checked into the Hazelden Clinic in 1988 and also had a stay at the Daniel Freedman Hospital in 1998 to seek help in overcoming a dependence to medicine prescribed for a neck injury.

Star was the first to report the story. Griffith is currently at the Cirque Lodge in Utah.